Fixes
- Fix crash when tapping اتصال on Android 11 with no Trojan configuration.
- Replace API 34-only StructCmsghdr usage with Android-compatible LocalSocket file descriptor passing.
- Harden foreground VPN service startup and failure handling.
- Show the current app version in the header.
Verification
Tested on Nokia 3.2 running Android 11 (API 30): VPN connection reached متصل, tun2socks started successfully, and no fatal exception was logged.